A quick-response (QR) code is a two-dimensional, black-and-white square barcode and links directly to a URL of one's choice. When the code is scanned with a smartphone, it will automatically redirect the user to the designated URL. QR codes are popping up everywhere--billboards, magazines, posters, shop windows, TVs, computer screens, and more. They are free to make and free to use. These little squares are chock full of information that can direct one's phone to complete in seconds some complex tasks such as opening a website, looking up an address, playing a YouTube video, or downloading a ring tone. They can bridge the gap between the worlds of print and online media. In this article, the authors present the case for and against using QR codes.